List of MeSH codes (B03)

List of MeSH codes (B03) refers to a comprehensive categorization within the Medical Subject Headings (MeSH) system, specifically focusing on the section B03, which encompasses the domain of bacteria. MeSH is a hierarchical controlled vocabulary used for indexing, cataloging, and searching for biomedical and health-related information. It facilitates the organization of knowledge in the biomedical field, making it easier to retrieve specific information from vast databases such as PubMed.

Overview

The B03 category of MeSH codes is dedicated to bacteria, microorganisms characterized by their simple, unicellular structure. Bacteria are crucial to various biological processes, including nutrient cycling, and play significant roles in medicine, both as pathogens causing diseases and in biotechnological applications such as antibiotic production. The classification under B03 is divided into subcategories that group bacteria based on their phylogenetic relationships, morphological characteristics, and ecological functions.

Subcategories

The B03 category includes several subcategories, each representing different groups or characteristics of bacteria. These subcategories facilitate detailed and specific indexing of literature related to various bacterial taxa and their implications in health and disease. Some of the notable subcategories within B03 include:

• B03.440 - Gram-Positive Bacteria: This subcategory includes bacteria characterized by a thick peptidoglycan layer in their cell walls, making them stain positively in the Gram stain test. It encompasses significant genera such as Staphylococcus and Streptococcus, known for their roles in human infections.
• B03.660 - Proteobacteria: A large and diverse group of Gram-negative bacteria, including many pathogens such as Escherichia coli, Salmonella, and Helicobacter pylori. This subcategory is further divided based on the phylogenetic relationships among these bacteria.
• B03.510 - Firmicutes: Comprising mostly Gram-positive bacteria, this group includes important genera like Bacillus and Clostridium, which are notable for their environmental and medical significance.
• B03.353 - Cyanobacteria: Also known as blue-green algae, cyanobacteria are photosynthetic bacteria important for their role in oxygen production and nitrogen fixation in aquatic ecosystems.

Importance

The classification of bacteria into specific MeSH codes under category B03 is vital for the efficient organization and retrieval of scientific literature. It aids researchers, clinicians, and students in finding relevant information on bacterial taxonomy, physiology, genetics, pathogenicity, and their roles in ecosystems. Furthermore, understanding the diversity and characteristics of bacteria is essential for developing new antibiotics, bioremediation strategies, and biotechnological applications.

See Also

• Medical Subject Headings
• Bacteria
• Taxonomy (biology)
• Biomedical Information
• PubMed